A female person having the same parents as another person 2. How to use sister in a sentence. The meaning of sister is a female who has one or both parents in common with another.
Geena Davis, Susan Sarandon Have 'Thelma & Louise' Reunion at 90s Con
A girl or woman who treats you. Sister (plural sisters or (archaic in most senses) sistren) a daughter of the same parents as another person; A girl or woman who has the same parents as another person: